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प्रश्न
Write a short note.
Nuclear Power Plant
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उत्तर
- In a nuclear power plant, uranium or plutonium are used as fuel.
- Conversion of nuclear energy to thermal energy during the nuclear fission process: During the fission of nuclei of atoms like uranium or plutonium, the nuclear energy is converted to thermal energy.
- Conversion of thermal energy to kinetic energy in steam: This thermal energy is used to heat the water present in a boiler. Steam of very high temperature and pressure is generated and directed on the blades of the turbine.
- Conversion of kinetic energy in steam to kinetic energy in turbine: The kinetic energy produced in the steam is then used to drive the turbine.
- Conversion of kinetic energy in the turbine to electrical energy: The turbine rotates the generator connected to it which in turn produces electrical energy.
Energy transformation in nuclear power plant
APPEARS IN
संबंधित प्रश्न
One of the following is not a characteristic of a good fuel. This is:
(a) high calorific value
(b) no emission of smoke
(c) smooth burning
(d) high ignition temperature
Fill in the following blank with suitable word:
Splitting of a heavy nucleus into two lighter nuclei is called ........
Write Einstein's mass-energy equation. Give the meaning of each symbol which occurs in it.
If 25 atomic mass units (u) of a radioactive material are destroyed in a nuclear reaction, how much energy is released in MeV?
What will happen if slow moving neutrons are made to strike the atoms of a heavy element `''235_92U`? What is the name of this process?
With the help of a labelled diagram, describe the working of a nuclear power plant
One atomic mass unit (u) is equivalent to an energy of:
The disposal of waves produced in a nuclear power plant poses a big problem because it is:
(a) too heavy
(b) highly inflammable
(c) extremely foul smelling
(d) highly radioactive
The heat energy released during nuclear fission and fusion is due to the:
(a) conversion of stored chemicals into energy
(b) conversion of momentum into energy
(c) conversion of mass into energy
(d) conversion of magnetism into energy
A nuclear reaction is represented by the following equation:
`""_92^235U+_0^1n-> _56^139Ba+_36^94Kr+xc+E`
Identify the particle c and the number x of such particles produced in the reaction.
A nuclear reaction is represented by the equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
What does E represent?
List any four characteristics of a good fuel.
One isotopes of uranium has a mass number of 235 and atomic number 92.
(a) What is the number of electrons in a neutral atom of this isotope?
(b) How many protons are there in the nucleus of this isotope?
(c) For another isotope of Uranium state which one of the numbers (238 or 92) changes?
(d) What is the number of protons in 238U?
What do you understand by radioactive decay? An isotope of Uranium `""_92^238 "U"` is radioactive and changes into Thorium 92 by the emission of an alpha particle. Write a symbolic equation for this decay process.
What is a.m.u?
Name the following nuclear reaction:
\[\ce {^3_1H + ^2_1H -> ^4_2He + ^1_0n + γ}\]
Draw a simplified labelled diagram of a hot cathode ray tube.
Write the merits of nuclear energy.
In an atomic power station, nuclear energy is converted into electrical energy.
Give scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
